Symbian is dead, long live Windows Phone. Nokia is now an major player in the Windows Phone ecosystem, and all Microsoft had to do was let of one their people become the CEO. Not a bad deal.

This slide, obtained by Engadget, from a Nokia slide deck shown straight from the presentation of CEO Stephen Elop and CFO Timo Ihamuotila, highlight what many of been speculating for the last couple months. Nokia is jumping into the Windows Phone 7 ecosystem.

Elop left Microsoft in September of last year to become CEO of Nokia.

The writing has been on the wall for the death of Symbian since back in October when key members of the foundation that maintains the code left, and Nokia took it in house. Now it seems even Nokia has lost faith in it’s ability to compete with Apple, Google and Microsoft. Should those other platforms be scared? Microsoft and Nokia seem to think so, saying: